Revert 140817 "Web Inspector: [Styles] Editing a property value ..."

Source/WebCore/inspector/front-end/StylesSidebarPane.js

Index: Source/WebCore/inspector/front-end/StylesSidebarPane.js
===================================================================
--- Source/WebCore/inspector/front-end/StylesSidebarPane.js	(revision 147339)
+++ Source/WebCore/inspector/front-end/StylesSidebarPane.js	(working copy)
@@ -2089,14 +2089,10 @@
             selectElement = selectElement.enclosingNodeOrSelfWithClass("webkit-css-property") || selectElement.enclosingNodeOrSelfWithClass("value");
 
         var isEditingName = selectElement === this.nameElement;
-        if (!isEditingName) {
-            if (selectElement !== this.valueElement) {
-                // Click in the LI - start editing value.
-                isEditingName = false;
-                selectElement = this.valueElement;
-            }
-
-            this.valueElement.textContent = this.value;
+        if (!isEditingName && selectElement !== this.valueElement) {
+            // Double-click in the LI - start editing value.
+            isEditingName = false;
+            selectElement = this.valueElement;
         }
 
         if (WebInspector.isBeingEdited(selectElement))